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Re: regex-quote.c fails to build on Solaris 2.6


From: Bruno Haible
Subject: Re: regex-quote.c fails to build on Solaris 2.6
Date: Sun, 29 May 2011 21:42:19 +0200
User-agent: KMail/1.9.9

Hello,

Tom G. Christensen wrote:
> While trying to build a snapshot of gnulib on Solaris 2.6 I got this
> build error:
> depbase=`echo regex-quote.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\
>         gcc -DHAVE_CONFIG_H -I. -I..  -DGNULIB_STRICT_CHECKING=1 -D_REENTRANT 
>  -g -O2 -MT regex-quote.o -MD -MP -MF $depbase.Tpo -c -o regex-quote.o 
> regex-quote.c &&\
>         mv -f $depbase.Tpo $depbase.Po
> regex-quote.c: In function 'regex_quote_spec_posix':
> regex-quote.c:40: error: expected identifier before '(' token
> regex-quote.c: In function 'regex_quote_spec_gnu':
> regex-quote.c:86: error: expected identifier before '(' token
> regex-quote.c: In function 'regex_quote_spec_pcre':
> regex-quote.c:123: error: expected identifier before '(' token
> regex-quote.c: In function 'regex_quote_length':
> regex-quote.c:139: error: expected identifier before '(' token
> regex-quote.c: In function 'regex_quote_copy':
> regex-quote.c:174: error: expected identifier before '(' token
> make[4]: *** [regex-quote.o] Error 1
> 
> The problem is that /usr/include/euc.h has this:
> #define multibyte       (__ctype[520] > 1)
> That file is being included by <widec.h> which is included by <wctype.h>
> which is included by gnulib wctype.h.

Ouch. How ridiculous.

I'm adding this workaround:


2011-05-29  Bruno Haible  <address@hidden>

        wctype-h: Avoid namespace pollution on Solaris 2.6.
        * lib/wctype.in.h: On Solaris, undefine 'multibyte' and a few other
        identifiers.
        * doc/posix-headers/wctype.texi: Mention the problem.
        Reported by Tom G. Christensen <address@hidden>.

--- lib/wctype.in.h.orig        Sun May 29 21:34:58 2011
+++ lib/wctype.in.h     Sun May 29 21:33:02 2011
@@ -59,6 +59,19 @@
 
 /* The definition of _GL_WARN_ON_USE is copied here.  */
 
+/* Solaris 2.6 <wctype.h> includes <widec.h> which includes <euc.h> which
+   #defines a number of identifiers in the application namespace.  Revert
+   these #defines.  */
+#ifdef __sun
+# undef multibyte
+# undef eucw1
+# undef eucw2
+# undef eucw3
+# undef scrw1
+# undef scrw2
+# undef scrw3
+#endif
+
 /* Define wint_t and WEOF.  (Also done in wchar.in.h.)  */
 #if address@hidden@ && !defined wint_t
 # define wint_t int
--- doc/posix-headers/wctype.texi.orig  Sun May 29 21:37:21 2011
+++ doc/posix-headers/wctype.texi       Sun May 29 21:36:41 2011
@@ -25,6 +25,10 @@
 @item
 The functions @code{isw*} are actually defined as macros that don't work,
 on IRIX 5.3.
address@hidden
+This header file defines some identifiers, such as @code{multibyte}, as macros
+on some platforms:
+Solaris 2.6.
 @end itemize
 
 Portability problems not fixed by Gnulib:
-- 
In memoriam John Penry <http://en.wikipedia.org/wiki/John_Penry>



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